Load Specifications
Load data in caliber 7 x 57 R with .284 | 154gr | Norma Soft Point bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 62.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 44,005 psi | 89% | 2477 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 44,077 psi | 89% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,815 psi | 87% | 2569 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 84% | 42,888 psi | 87% | 2490 fps | 98.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 43,511 psi | 88% | 2625 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,772 psi | 87% | 2513 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 82% | 42,902 psi | 87% | 2523 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,438 psi | 86% | 2582 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,351 psi | 86% | 2608 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,769 psi | 79% | 2536 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,076 psi | 87% | 2684 fps | 97.9% |
| Bofors RP3 | <<locked>> | 84% | 42,569 psi | 86% | 2523 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 84% | 43,352 psi | 88% | 2523 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 44,440 psi | 90% | 2572 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,787 psi | 89% | 2569 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 72% | 1631 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,525 psi | 86% | 2474 fps | 98.6% |
| IMR 4831 | <<locked>> | 94% | 43,918 psi | 89% | 2575 fps | 98.4% |
| IMR 4895 | <<locked>> | 82% | 43,932 psi | 89% | 2552 fps | 99.2% |
| Lovex S062 | <<locked>> | 82% | 42,482 psi | 86% | 2480 fps | 99.6% |
| Lovex S065 | <<locked>> | 90% | 44,440 psi | 90% | 2520 fps | 97.1% |
| Norma 203B | <<locked>> | 82% | 42,235 psi | 86% | 2510 fps | 98.9% |
| Norma URP | <<locked>> | 92% | 42,699 psi | 87% | 2566 fps | 98% |
| Ramshot Big Game | <<locked>> | 82% | 42,119 psi | 85% | 2533 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 94% | 44,556 psi | 90% | 2608 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,056 psi | 73% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,845 psi | 89% | 2510 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,279 psi | 86% | 2612 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,598 psi | 86% | 2592 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,670 psi | 87% | 2605 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 44,251 psi | 90% | 2490 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 86% | 42,453 psi | 86% | 2513 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,440 psi | 90% | 2520 fps | 97.1% |
| Shooters World Precision | <<locked>> | 82% | 42,482 psi | 86% | 2480 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 43,903 psi | 89% | 2569 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,511 psi | 86% | 2405 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 43,352 psi | 88% | 2520 fps | 99.4% |
| Somchem S365 | <<locked>> | 96% | 43,540 psi | 88% | 2621 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 43,888 psi | 89% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 44,382 psi | 90% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 44,106 psi | 89% | 2503 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 42,134 psi | 85% | 2520 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 82% | 42,743 psi | 87% | 2474 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 44,034 psi | 89% | 2569 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,293 psi | 86% | 2608 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,959 psi | 85% | 2497 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,519 psi | 70% | 2530 fps | 98.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 41,104 psi | 83% | 2431 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 38,856 psi | 79% | 2425 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,532 psi | 66% | 2356 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 37,913 psi | 77% | 2392 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,495 psi | 82% | 2562 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,507 psi | 76% | 2411 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,422 psi | 82% | 2474 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,199 psi | 67% | 2372 fps | 95.2% |
| Alliant Reloder-17 | 41 gr | 80% | 32,430 psi | 66% | 2382 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,414 psi | 62% | 2333 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,114 psi | 71% | 2503 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 37,202 psi | 75% | 2418 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 80% | 37,971 psi | 77% | 2418 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,442 psi | 58% | 2224 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,973 psi | 83% | 2516 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 54% | 1457 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,813 psi | 81% | 2425 fps | 98.1% |
| IMR 4831 | <<locked>> | 86% | 33,765 psi | 68% | 2369 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 41,423 psi | 84% | 2503 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 39,769 psi | 81% | 2428 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 39,363 psi | 80% | 2421 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 39,813 psi | 81% | 2464 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 33,112 psi | 67% | 2362 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,146 psi | 79% | 2474 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 39,233 psi | 80% | 2503 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 54% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,176 psi | 84% | 2457 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,519 psi | 70% | 2448 fps | 99.5% |
| ReloadSwiss RS 62 | 44 gr | 86% | 34,650 psi | 70% | 2428 fps | 95.4% |
| ReloadSwiss RS 70 | 45.8 gr | 88% | 37,304 psi | 76% | 2490 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 41,727 psi | 85% | 2448 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,911 psi | 71% | 2362 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,363 psi | 80% | 2421 fps | 95.7% |
| Shooters World Precision | <<locked>> | 80% | 39,769 psi | 81% | 2428 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,824 psi | 73% | 2408 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,391 psi | 76% | 2316 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 35,824 psi | 73% | 2372 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 26,107 psi | 53% | 2211 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 41,002 psi | 83% | 2425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,568 psi | 84% | 2434 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,968 psi | 69% | 2310 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 34,476 psi | 70% | 2362 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 40,089 psi | 81% | 2425 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,924 psi | 69% | 2362 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 32,663 psi | 66% | 2405 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,139 psi | 61% | 2238 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,429 psi | 62% | 2405 fps | 96.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 47 powders for 7 x 57 R loaded with the .284 | 154gr | Norma Soft Point. Alliant Reloder-26 delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,684 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon TrailBoss reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 154gr | Norma Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.